Home / 2,381.34-3,285.97-1,386.52

Finding the Fourth Proportional to 2,381.34, 3,285.97 and 1,386.52

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Solution

The fourth proportional to 2,381.34, 3,285.97 and 1,386.52 is: 1,913.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,381.34 : 3,285.97 = 1,386.52 : x
  2. Step 2: Convert to fraction form
    2,381.34/3,285.97 = 1,386.52/x
  3. Step 3: Cross multiply
    2,381.34x = 3,285.97 × 1,386.52
  4. Step 4: Simplify right side
    2,381.34x = 4,556,063.12
  5. Step 5: Solve for x
    x = 4,556,063.12/2,381.34
  6. Step 6: Final answer
    x = 1,913.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.